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Journal of Pediatric Epilepsy 2014; 03(04): 217-227
DOI: 10.3233/PEP-14097
DOI: 10.3233/PEP-14097
Review Article
Disorders of GABA metabolism: SSADH and GABA-transaminase deficiencies
Subject Editor:
Further Information
Publication History
16 January 2013
16 January 2013
Publication Date:
18 July 2015 (online)
Abstract
Clinical disorders known to affect inherited gamma-amino butyric acid (GABA) metabolism are autosomal recessively inherited succinic semialdehyde dehydrogenase and GABA-transaminase deficiency. The clinical presentation of succinic semialdehyde dehydrogenase deficiency includes intellectual disability, ataxia, obsessive-compulsive disorder and epilepsy with a nonprogressive course in typical cases, although a progressive form in early childhood as well as deterioration in adulthood with worsening epilepsy are reported. GABA-transaminase deficiency is associated with a severe neonatal-infantile epileptic encephalopathy.